85642618744 has 16 divisors (see below), whose sum is σ = 164314327320. Its totient is φ = 41825464800.

The previous prime is 85642618729. The next prime is 85642618847. The reversal of 85642618744 is 44781624658.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124480207 + ... + 124480894.

Almost surely, 2^85642618744 is an apocalyptic number.

It is an amenable number.

85642618744 is a deficient number, since it is larger than the sum of its proper divisors (78671708576).

85642618744 is a wasteful number, since it uses less digits than its factorization.

85642618744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248961150 (or 248961146 counting only the distinct ones).

The product of its digits is 10321920, while the sum is 55.

The spelling of 85642618744 in words is "eighty-five billion, six hundred forty-two million, six hundred eighteen thousand, seven hundred forty-four".